US Motor Works US5040 Engine Water Pump

Engine Water Pump for GM 2.5L Applications

US Motor Works US5040 is an engine water pump for select Chevrolet and GMC vehicles from 1987-1993. It is built for direct replacement service and includes installation sealing devices to support a proper coolant seal during replacement.

Key Features

• Engine water pump for cooling system service
• Includes installation sealing devices
• Direct replacement for select Chevrolet S10 and GMC Sonoma applications
• Cross-references Airtex AW5040 and Gates 42094 for the same application
• US Motor Works part number US5040

Detailed Description

US5040 is an engine water pump intended for select GM compact truck and van platforms, including Chevrolet S10, Chevrolet Astro, GMC Sonoma, GMC S15, GMC Safari, Chevrolet S10 Blazer, and GMC S15 Jimmy. This pump supports coolant circulation through the engine cooling system and is a practical replacement choice when servicing a worn or leaking original unit. US Motor Works US5040 is also referenced by Airtex AW5040 and Gates 42094.

Compatible vehicle coverage includes Fits 1987-1993 Chevrolet S10, N/A; Fits 1991-1993 GMC Sonoma, N/A; Fits 1987-1990 Chevrolet Astro, N/A; Fits 1987-1990 GMC S15, N/A; Fits 1987-1990 GMC Safari, N/A; Fits 1987-1988 Chevrolet S10 Blazer, N/A; and Fits 1987-1988 GMC S15 Jimmy, N/A.

What It Helps Address

• Coolant leakage from a worn water pump
• Overheating caused by reduced coolant circulation
• Noise or bearing wear from an aging pump assembly
• Cooling system service on Chevrolet S10 and GMC Sonoma models
• Replacement of a failed pump on Astro, Safari, S15, and S10 Blazer applications

Installation Notes and Tips

Inspect the cooling system, gasket surfaces, hoses, and drive components before installation. Clean the mounting surface thoroughly and follow the vehicle service procedure for coolant refill and bleeding after replacement. Use the included installation sealing devices as directed to help achieve a proper seal.

Quality Assurance

US Motor Works supplies replacement cooling components for automotive service applications. US5040 is engineered as a service replacement water pump for the listed GM vehicles and is identified by the manufacturer part number US5040.